Ubuntu Networking :: VPN PPTP Connection Fails When Downloading?

Sep 20, 2010

I am using relakks.com VPN Service and set it up with gnome's default nm-manager interface. Everything is just perfect when I'm browsing the web. I can do it for hours and nothing happens. On the other hand, when I open up a torrent client - after 15 seconds to 2 minutes - I get a nice kick off the VPN.

It goes like this:

Code:
Sep 20 08:25:11 NPC pptp[3496]: nm-pptp-service-3490 warn[decaps_gre:pptp_gre.c:426]: discarding bogus packet 94236 (expecting 93663)
Sep 20 08:25:11 NPC pptp[3496]: nm-pptp-service-3490 warn[decaps_gre:pptp_gre.c:426]: discarding bogus packet 94237 (expecting 93663)

[Code].....

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Networking :: PPTP Client Fails To Connect To Microsoft ISA PPTP Server?

Sep 17, 2009

I'm trying to connect to a Microsoft ISA PPTP server from my Linux box. The box I'm connecting from is itself a router. I have no problem connecting a Windows XP machine to the VPN via this machine. This is fine, but I would rather connect via the Linux machine, giving me far more advanced routing options (i.e. no to send every packet from the XP box completely unnecessarily via the PPTP tunnel). The Linux router is running Debian Lenny.

I've checked iptables. There were initially some issues. I've fixed those.

Invoking pppd from the console, I can see that authentication succeeds, but then some negotiation goes wrong and the server terminates the connection. Here's the output from pppd, with the more sensitive stuff removed:

Code:
<hostname>:~# pppd call <peer> nodetach debug
using channel 19
Using interface ppp0
Connect: ppp0 <--> /dev/pts/2
sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0xe3e45f75> <pcomp> <accomp>]
code....

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Ubuntu Networking :: VPN PPTP Connects But Fails If Remote Session Established On Server

May 10, 2010

I am trying to connect to a windows 2000 VPN server at work, with my current settings in DOES connect to the VPN and i can ping the domain server which is 10.1.1.2 but the first issue is i cannot ping the other computers on the network(via hostnames) can't remember the ip address of the other machines . second issue is when the connection is established and i RDP into 10.1.1.2 ok great i am connected to the server but any interaction in the RDP session even moving the mouse on the screen kills the session and the VPN connection fails.

Running Ubuntu 10.04 LTS 64Bit

Image of current settings in network manager:

Syslog:

Code:
May 11 12:08:04 oliver-desktop NetworkManager: <info> Starting VPN service 'org.freedesktop.NetworkManager.pptp'...
May 11 12:08:04 oliver-desktop NetworkManager: <info> VPN service 'org.freedesktop.NetworkManager.pptp' started

[Code].....

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Ubuntu Networking :: PPTP VPN Connection Is Failed After A While?

Mar 12, 2010

I setup a PPTP VPN connection in ubuntu 9.10 (x86_64) using NetworkManager. After enabling the VPN connection, I can browse web pages (it's perfect) but after a while the vpn connection is terminated! The following is my syslog after connecting and terminating:

Code:
Mar 12 22:10:10 amir-desktop NetworkManager: <info> Starting VPN service 'org.freedesktop.NetworkManager.pptp'...
Mar 12 22:10:10 amir-desktop NetworkManager: <info> VPN service 'org.freedesktop.NetworkManager.pptp' started (org.freedesktop.NetworkManager.pptp), PID 2204

[Code]....

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Ubuntu Networking :: Configure Vpn Connection Using Pptp From The Shell

Feb 11, 2010

I tried to configure my vpn connection using pptp from the shell following following tutorial: [URL] now, if i use Code: pppd call novax to connect to my vpn i see following appearing in /var/log/messages:

Code:
Feb 10 21:11:57 reg-laptop pppd[2655]: pppd 2.4.5 started by root, uid 0
Feb 10 21:11:57 reg-laptop pppd[2655]: Using interface ppp0
Feb 10 21:11:57 reg-laptop pppd[2655]: Connect: ppp0 <--> /dev/pts/0
Feb 10 21:11:58 reg-laptop pppd[2655]: CHAP authentication succeeded
Feb 10 21:11:59 reg-laptop pppd[2655]: MPPE 128-bit stateless compression enabled
Feb 10 21:12:00 reg-laptop pppd[2655]: local IP address 10.243.249.22
Feb 10 21:12:00 reg-laptop pppd[2655]: remote IP address 10.243.249.20

verifying with ifconfig, my ppp0 ip is correctly set to 10.243.249.22 - i can also ping this ip but i tried to ping other ips in our network and i can't reach any of them - did i mess up the route maybe? Content of my /etc/ppp/ip-up.d/route-traffic:

[Code]...

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Ubuntu Networking :: PPTP Connection Failing With LCP Timeout

Mar 6, 2010

I'm using Kubuntu 9.10, my pppd version is 2.4.5 and pptp is 1.7.2 I'm trying to connect to the iPredator VPN service, but I keep running into problems with LCP. I've tried using knetworkmanager, nm-applet, kvpnc and plain old text-based configuration to no avail. Here's a snippet of pppd's output:

[Code].....

(I've got "defaultroute" in my /etc/ppp/peers/ipred config file.) Any ideas what could be causing this? Could it even be my router? It claims to support PPTP, but considering it claims a lot of other things which aren't true, I wouldn't be surprised if it was the culprit.

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Sep 15, 2010

i set a pptp -vpn connection.but i cant post anything in facebook. is there any specific settings i have to do?

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Ubuntu Networking :: PPTP VPN Connection Stopped Working?

Oct 6, 2010

I managed to set up a PPTP VPN connection in Ubuntu 10.04, and it worked first time.This was about 3 months ago. It was working yesterday (Oct 05 2010), but when I came to log in to the VPN today it doesn't work. I tried the same VPN connection on my wife's laptop which runs Vista and it works. I have tried re-entering the details, even deleting and setting up from scratch via network manager. And yes I have the correct VPN plugins. what I should do. Is there a log file so I can have a look at it to see what the problem is. If there is where is it located. The computer is able to connect to the internet without any problems, just can't connect to the VPN. The only thing I can think of is that the update manager popped up this morning so a few things have got updated today. maybe something in there broke the VPN connection.

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Jul 20, 2011

I am unable to make my VPN connection to my university work correctly. Before, it would work some of the time without changing any settings. Now it never works. Unfortunately my institution does not provide support to linux users (outrageous!) so I'm on my own. Here is a link to the configuration instructions for windows and mac users, I've tried to configure mine based on this information but I have not been able to do it.

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Networking :: Routing Change By Pptp VPN Connection

Jun 26, 2011

I have just managed to setup a small server were I run rtorrent through och VPN tunnel pptp based. When I start up my server without starting the tunnel it looks like this.

[Code]...

I guess that something happen with the VPN connection, assigned a new ip number maybe and that that made the change.

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Dec 27, 2010

Here's my setup: Slackware 13.1 External IFace = eth0 / DHCP (assigned from comcast) Internal IFace = eth1 / 192.168.0.0/24 I've made it connect/authenticate, but I can't get anything to route through it..

[Code]...

Really wanting to try and get this setup to where all computers on my lan are forced through the VPN, i've tried most of all things I've googled, and no real luck.

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Fedora Networking :: Use Network Manager To Connect To A Pptp Vpn Connection?

Feb 25, 2010

I have updated the system this morning and the vpn stopped working!It gives me an error: invalid secrets.I use network manager to connect to a pptp vpn connection, I use fedora 12.Does anyone know the problem?

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Fedora Networking :: Pptp Vpn Connection - Failed To Parse Server Response

Nov 11, 2009

I am trying to connect to our work server (windows), however, without succes In the log I get the message: "Failed to parse server response"

And when I close the vpn connection window I get "there were no valid vpn secrets"

I Use F10 with xfce on an aspire one.

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Apr 2, 2010

recently i rent a xen vps intended to setup a PPTPD vpn server for me and my friends. so we can by-pass the great firewall in china and get back on ....., facebook and stuff. i have already setup the server and i can connect to it without any problem. but i still want to do some further configuration the server:

1. i want to limit the bandwidth to 400k/s per connection.
2. i also want to limit the max connection per user a/c

i have some thoughts on the 2nd requirement. in the user configuration file of /etc/ppp/chap-secret, you can specify the range of ip the user can get, does it limit the max connection per user a/c? or they can connect anyway, just every now and then a box pop up says conflict in IP address?

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Ubuntu Networking :: Cannot Connect To PPTP VPN (The Synchronous Pptp Option Is NOT Activated )?

Jan 7, 2011

I am trying to connect to a PPTP VPN at work, and I cannot accomplish that. Both server and client are using Ubuntu 10.10.

Code:
Jan 7 11:32:26 multicore-dev03 NetworkManager: <info> Starting VPN service 'org.freedesktop.NetworkManager.pptp'...

[code]....

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Mar 13, 2010

i have a VPN server PPTPD on Centos 5.3

eth0: 62.2.2.x (public on the internet)
GW: 62.2.2.1 (cisco router)

i want to configure my ppptp server to allow users access internet with their own public ips of class 62.2.3.0 62.2.4.0 62.2.5.0

every time i configure my server all users can get thier IPs but they only go out with my server IP same as NAT not routing.

can you show me the proper configuration to make my users connect with public IP and have internet access. use specific DNS ( i did this but some users can not brows by DNS)

is there any way to specify an expired date for each pptp user.

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Ubuntu Networking :: Connection Drops While Downloading A With Bittorrent Client

May 29, 2011

I tried Ubuntu, Kubuntu and now Xubuntu, all 11.04. I've also tried Deluge, Transmission and Ktorrent. With 10.10 everything worked fine (all variants). Also, in Windows 7 it's working fine. But now it drives me crazy. As soon as I start a torrent, the download starts but after 30 seconds or so the download drops to a zero. Also, I'm not able to browse anymore. The networkmanager tells me I still have a connection.

Some say it has something to do with the number of peers the client connects to, or it's my router. My router isn't the problem, as it's working fine with 10.10 and windows. So maybe it's the number of peers right? Question. Why can I connect with over 200 peers at the same time while I'm using 10.10 or windows, but can't do it with 11.04? Better put, what should I do to get this working fine again? Going back to 10.10?

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Networking :: PPTP Connection From WAN / Gets To "verifying Username And Password", And Then Returns Error 619?

Jun 10, 2009

I have set up an ubuntu server running PPTP Server for VPN connections. I can successfully connect from a laptop within the LAN, but taking that same machine to an internet connection and trying to connect back in does not work. The only difference is that when I connect from within the network, I am obviously using the server's LAN (non-routable) address, and when I am connecting from outside the network (from Verizon Business DSL ), I am using the Comcast connection's static IP address.

I have a static IP address on a Comcast Business Class internet connection. Router is set to forward pptp and GRE ports.

Works:
VPN Server <- Laptop
iPhone -> Internet -> Router -> VPN Server

Does not work:
Laptop -> Internet -> Router -> VPN Server

Here is the weird thing. I have an iPhone that connects flawlessly every time through it's AT&T data connection. The laptop however, gets to "verifying username and password", and then returns error 619. It seems that there is an issue only when going through the router using the PPTP client built into MS windows.

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Fedora :: VPN (PPTP) Fails After Recent Update?

Feb 25, 2010

Updated occurred yesterday and installed new ppp on my F12 box. my previously working, stored PPTP profiles under network manager failed to connect claming some thing about security credentials wrong.) downgraded (yum downgrade ppp) , rebooted and its working again. Im not sure where the real problem is, can "the gods above" or below either forward this to the apporpriate bug tracker (packager, testing, redhat, who owns ppp? network manager?) so this is fixed or downgraded in the next F12 update cycle?

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Ubuntu :: PPTP VPN Connection - Internet Really Slow

Jan 29, 2011

I recently installed Kubuntu 10.10 on my machine, and I configured the PPTP VPN connection through which I connect to the internet. I can successfully connect, but it works really slowly. Slower than it does on Windows 7 on the same computer, with the same settings for the PPTP dialer. In about 20 minutes after I connect, the connection fails and even the modem restarts itself. I tried setting the MTU for the pptp connection to 1400 (I checked, and 1372 is the maximum value before the packets start to fragment + 28 bytes for the IP/ICMP headers), but nothing seems to help.

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Ubuntu Networking :: DSL/pppoe Connection Script Fails?

Apr 18, 2010

i have setup my connection with pppoeconf command ...i had not started it at boot time..i make a script like this....

Code:
#!/bin/bash
echo "Connecting"

[code]....

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Ubuntu Networking :: Usb Modem Works But Connection Fails?

Jan 9, 2011

I have a usb modem which I plug into my ubuntu 10.10 system for a dial-up service. The modem is recognised by wvdial and dials properly, but the connection is not established.I get "Unable to run /usr/sbin/pppd" (although pppd is certainly in /usr/sbin), followed by "Check permissions of specify a 'PPPD Path' option in wvdial.conf", and finally "Connected, but carrier lost", then it gives up.

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Fedora :: Connect To A Windows Vpn Connection Using Pptp

Nov 26, 2010

I'm unable to connect to a windows vpn connection using pptp this was working yesterday but for some strange reason it stopped working. My other vpn tunnels to cisco and so on are working great. I have the following log:

[Code]....

Nov 26 17:05:15 falx NetworkManager[1319]: <info> VPN service 'pptp' disappeared I have the latest updates, so that means that selinux was updated today. My selinux policy was enforcing but I changed it to disable and allready rebooted. Iḿ using Fedora 14 (I already regret for making the upgrade from 13, also have a problem with display drivers or something, but thats another story) does anyone encounter a problem like mine with pptp? can you share the solution if there is one?

Alexandre. Update: At the moment after connecting by Ethernet cable to my home network the connection wold be established but no address would work to the remote network, I've disconnected the cable and resumed using my wifi connection and the VPN connection is working again!! I don't have a clue about what just happened.. since itś working I need to get some work done and will provide more info on this matter if I found something new.

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Dec 26, 2010

Since I completely switched to Opensuse11.3 From MS-Windows OS. The Problem I had is a PPTP VPN connection in windows, Which I used to connect Via a connection, The VPN provider gave me. Since these connection are for MS-Windows , I can't create a connection manually in Opensuse. I used , KDE control module/Network connection/VPN/add -> PPTP then I entered the host ip in NT DOMAIN field , my username, and password, and left all other options (including Gateway) the way it was. After that, every time I try to connect to this connection, NOTHING happens.

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Apr 6, 2011

I am using OpenSuse 11.4 and trying to set up pptp. I think I am almost there but cant seem to make a connection. Here is the log: -

[Code]....

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Server :: No Internet Traffic Through The PPTP VPN Connection?

Feb 21, 2011

everything works fine, clients can connect to the vpn server with no problems and they can ping local machines! but no internet access through the vpn connection unless i uncheck the default gateway option on my client machine which is not what i want. I want my clients to get my server's ip address. my server is behind a router (router's ip : 192.168.0.1 | server's local ip: 192.168.0.100) so i used localip 192.168.0.100 & remoteip 192.168.0.234-238 in pptpd.conf. it think there is something wrong with routing or firewall rules, because it seems that the DNS resolution works .. when i try to browse a website my browser says "Waiting for xxxxx.com..." and it stays on that stage forever ! the funny part is that google.com works fine (don't know how).

p.s :
* I have already opened the port in on my router. I even tried it locally to make sure that the router is not the problem here. * already added ms-dns 208.67.222.222 / ms-dns 208.67.220.220 to pptpd-options. (found another guide that suggested to do this, before adding these two lines even dns resolution was not working.)

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Ubuntu Installation :: VPN Connection (PPTP) Terminated To Company Network

Mar 14, 2010

I tried since yesterday to get a VPN-connection but it seems that until now I'm not able to reach the Company-network. Our company use the pptp connection. I tried many different setup's but without sucess. I use Ubuntu 9.10 and installed the pptp-manager.

Following settings:
Gateway (set)
Username (set)
MSCHAPv2 (check)
Point to point (check)
Stateful (check)
BSD (check)
Deflate (check)
TCP (check)

Below you find the result from the syslog, what can I do now?
Code:
Mar 14 13:03:58 snofla-desktop pptp[2767]: nm-pptp-service-2756 log[ctrlp_disp:pptp_ctrl.c:950]: PPTP_SET_LINK_INFO received from peer_callid 0
Mar 14 13:03:58 snofla-desktop pptp[2767]: nm-pptp-service-2756 log[ctrlp_disp:pptp_ctrl.c:953]: send_accm is FFFFFFFF, recv_accm is FFFFFFFF
Mar 14 13:03:58 snofla-desktop pptp[2767]: nm-pptp-service-2756 warn[ctrlp_disp:pptp_ctrl.c:956]: Non-zero Async Control Character Maps are not supported!
Mar 14 13:03:58 snofla-desktop pppd[2759]: Connection terminated.
Mar 14 13:03:58 snofla-desktop NetworkManager: <info> VPN plugin failed: 1 ......

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Feb 19, 2011

I can get connected to the Internet when I reboot the system, but the connection usually fails after within 10 mins. However, even then the network manager says it's connected. Never reconnect, manually or automatically.

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Networking :: Vpn Connection Fails On Debian Lenny?

Aug 2, 2010

I'm using debian lenny and I've created a vpn connection (client) to connect to a windows vpn server , my chap-secrets file looks like the following :

Code:

# Secrets for authentication using CHAP
# clientserversecretIP addresses
........
# added by pptpsetup for afa
afa afa "my_pass" *

and my settings for 'afa' vpn connection are :

Code:

# written by pptpsetup
pty "pptp 212.50.246.113 --nolaunchpppd"
lock
noauth

[code]....

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General :: Creating Stable, Automatically Reconnecting PPTP Connection In Ubuntu

Aug 13, 2010

I've been using network-manager-pptp to create a PPTP VPN connection in my Ubuntu virtual machine for a while now, but I have constant problems with random disconnects. I don't know what the cause of the problem is, but I suspect that network-manager-pptp is not the most well-written piece of software around...

Is there another way of instantiating PPTP connections in a more robust manner? The same PPTP server works reasonably OK with Windows 7 (some disconnects, fewer than in Ubuntu, and Windows has an auto-reconnect feature).

I read some guides on using the pptp command, but they all seemed pretty low-level, messing around with ppp. I never found the time to figure out how it all was supposed to fit together. Has anyone accomplished what I'm trying and is willing to share the knowledge?

EDIT: Tried kvpnc, and it seems the stability is more or less the same as network-manager-pptp. The error message is "Modem hangup".

To clarify, I understand that the connection can go down, but I want to be able to reconnect automatically when disconnected.

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